 
 (define-registered get-time
   (fn [state] (push-item (stack-ref :auxiliary 4 state) :integer state)))
+
+(define-registered get-size
+  (fn [state] (push-item (.n (stack-ref :auxiliary 0 state)) :integer state)))
 
 (define-registered get-depth
   (fn [state] (push-item (.depth (stack-ref :auxiliary 0 state)) :integer state)))

      :crossover-probability 0.50
      :simplification-probability 0.0
      :ultra-probability 0.0
      :print-csv-logs true
      :report-simplifications 0
      :print-history false})

             reduce-min

             get-time
             get-size
             get-depth
             nodes-of
             neighbors-of
